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Sciences and Exploration Directorate
Operational

Advanced Composition Explorer (ACE)

The Advanced Composition Explorer (ACE) studies energetic particles from the sun as well as sources within and outside our galaxy. ACE observations contribute to our understanding of the formation and evolution of the solar system as well as the astrophysical processes involved. NASA's Goddard Space Flight Center provided detectors and telescopes for several of ACE's instruments. The mission launched in 1997.

Launch Date

August 1997

Class

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Website

Key Staff
Instruments

The Advanced Composition Explorer (ACE) studies energetic particles from the sun as well as sources within and outside our galaxy. ACE observations contribute to our understanding of the formation and evolution of the solar system as well as the astrophysical processes involved. NASA's Goddard Space Flight Center provided detectors and telescopes for several of ACE's instruments. The mission launched in 1997.

Related Publications

2025. "Connecting Solar Orbiter and L1 Measurements of Mesoscale Solar Wind Structures to Their Coronal Source Using the ADAPT-WSA Model.", The Astrophysical Journal, 990 (2): 97 [10.3847/1538-4357/adec6c] [Journal Article/Letter]

2025. "Multimission Observations of Relativistic Electrons and High-speed Jets Linked to Shock-generated Transients.", The Astrophysical Journal Letters, 981 (1): L10 [10.3847/2041-8213/adb154] [Journal Article/Letter]

2024. "Could a Low‐Frequency Perturbation in the Earth's Magnetotail Be Generated by the Lunar Wake?.", Geophysical Research Letters, 51 (22): [10.1029/2024gl110129] [Journal Article/Letter]

2024. "Unveiling the journey of a highly inclined CME.", Astronomy & Astrophysics, 684 (A90): 17 [10.1051/0004-6361/202347083] [Journal Article/Letter]

2024. "Comparing Information Theory Analysis With Cross‐Correlation and Minimum Variance Analysis of the Solar Wind Structures.", Space Weather, 22 (7): [10.1029/2024sw003870] [Journal Article/Letter]